1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.os;
18
19import com.android.layoutlib.bridge.android.BridgeContext;
20import com.android.layoutlib.bridge.impl.RenderAction;
21import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
22
23import java.util.ArrayList;
24import java.util.HashMap;
25import java.util.List;
26import java.util.Map;
27
28/**
29 * Delegate overriding selected methods of android.os.HandlerThread
30 *
31 * Through the layoutlib_create tool, selected methods of Handler have been replaced
32 * by calls to methods of the same name in this delegate class.
33 *
34 *
35 */
36public class HandlerThread_Delegate {
37
38    private static Map<BridgeContext, List<HandlerThread>> sThreads =
39            new HashMap<BridgeContext, List<HandlerThread>>();
40
41    public static void cleanUp(BridgeContext context) {
42        List<HandlerThread> list = sThreads.get(context);
43        if (list != null) {
44            for (HandlerThread thread : list) {
45                thread.quit();
46            }
47
48            list.clear();
49            sThreads.remove(context);
50        }
51    }
52
53    // -------- Delegate methods
54
55    @LayoutlibDelegate
56    /*package*/ static void run(HandlerThread theThread) {
57        // record the thread so that it can be quit() on clean up.
58        BridgeContext context = RenderAction.getCurrentContext();
59        List<HandlerThread> list = sThreads.get(context);
60        if (list == null) {
61            list = new ArrayList<HandlerThread>();
62            sThreads.put(context, list);
63        }
64
65        list.add(theThread);
66
67        // ---- START DEFAULT IMPLEMENTATION.
68
69        theThread.mTid = Process.myTid();
70        Looper.prepare();
71        synchronized (theThread) {
72            theThread.mLooper = Looper.myLooper();
73            theThread.notifyAll();
74        }
75        Process.setThreadPriority(theThread.mPriority);
76        theThread.onLooperPrepared();
77        Looper.loop();
78        theThread.mTid = -1;
79    }
80}
81